The development of fear, anger, and joy was examined in 112 children using a longitudinal design. Children were observed at 9, 14, 22, and 33 months in standard laboratory episodes designed to elicit fear, anger, or joy. At 14 months, mother-child attachment was assessed in the Strange Situation. The attachment groups (avoidant, secure, resistant, and disorganized/unclassifiable) differed in th...
